Hello I get Traceback by just printing values
My CODE on PYTHON 3.8:

def two_sum(numbers, target):
print(target)

Output:
Test Results:
Log
4
STDERR
Traceback (most recent call last):
File "tests.py", line 3, in
test.assert_equals(sorted(two_sum([1,2,3], 4)), [0,2])
TypeError: 'NoneType' object is not iterable